Hello,
I have the same problem with Jabbra clipper and HTC Desire. It pairs perfectly but listening to music is realy not that nice because it cuts all the time unless you keep it very close to one another. Even in my trouser's pocket I get this problem that is less than a meter apart....
I don't think it has much to do with the Jabbra Device. I used the BT3030 for a year before that with a Sony Ericcson and it worked fine up to 20 meter away.
I am sure the Android system got something to do with it, because it unplugs on the Desire side (you can see it on the music application) then the Jabbra Clipper sometimes shuts off of signals it (I don't know the sound code of the clipper).
As a matter of fact, when it cuts the music off, I usually just need to press the play button (on Jabbra or Desire) to start the music again.
Apparently, while phoning, there is no such disturbance.
Well that's all I can say on the matter. Hope somebody will find a solution (special music applet for the clipper?) and will be watching the forum.